CN105299751A - Air conditioning device - Google Patents

Air conditioning device Download PDF

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Publication number
CN105299751A
CN105299751A CN201510278090.5A CN201510278090A CN105299751A CN 105299751 A CN105299751 A CN 105299751A CN 201510278090 A CN201510278090 A CN 201510278090A CN 105299751 A CN105299751 A CN 105299751A
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CN
China
Prior art keywords
indoor
fan
framework
opening portion
refrigerant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510278090.5A
Other languages
Chinese (zh)
Other versions
CN105299751B (en
Inventor
铃木康巨
驹井隆雄
前田晃
川岛充
久保和也
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to CN201810895807.4A priority Critical patent/CN109185982B/en
Publication of CN105299751A publication Critical patent/CN105299751A/en
Application granted granted Critical
Publication of CN105299751B publication Critical patent/CN105299751B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/12—Inflammable refrigerants

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Abstract

The invention provides an air conditioning device which can restrain refrigerant local concentration rising in a room in case of refrigerant leakage and reduce production cost. Provided is an air conditioning device having a refrigeration cycle (40), an outdoor unit (2), and an indoor unit (1). The refrigerant has a density greater than that of the air under atmospheric pressure. The indoor unit (1) is provided with: an upper space (115b) in which an indoor heat exchanger (7) is disposed; a lower space (115a) provided lower than the upper space (115b); a partition part (20) that partitions the upper space (115b) and the lower space (115a); an indoor blower fan (7f) disposed in the lower space (115a); and a fan casing (108) in which a blow-out opening part(108a) and a suction opening part(108b) are formed. An air passage opening part (20a) that serves as an air passage between the upper space (115b) and the lower space (115a) is formed in the partitioning part (20). The blow-out opening part (108a) is connected to the air passage opening part (20a).

Description

Aircondition
Technical field
The present invention relates to aircondition.
Background technology
In the past, as the cold-producing medium that aircondition uses, it is the HFC cold-producing medium using non-flame properties R410A such.This R410A HCFC cold-producing medium such from existing R22 is different, and its ozone layer depleting potential (hereinafter referred to as " ODP ") is zero, does not therefore damage the ozone layer.But R410A has the high such character of global warming potential (hereinafter referred to as " GWP ").Therefore as the ring preventing global warming, the research changed to the cold-producing medium that GWP is low from the HFC cold-producing medium that the GWP that R410A is such is high constantly advances.
As the candidate of the cold-producing medium of so low GWP, have the R290 (C as natural refrigerant 3h 8: propane), R1270 (C 3h 6: propylene) such HC cold-producing medium.But R290, R1270 are different from non-flame properties R410A, there is the combustibility (by force combustion property) of strong combustion rank.Therefore, when using R290, R1270 as cold-producing medium, should be noted that the leakage of cold-producing medium.
In addition, as the candidate of low GWP cold-producing medium, have the HFC cold-producing medium of the double bond in the composition without carbon, the R32 (CH that such as GWP is lower than R410A 2f 2; Difluoromethane).
In addition, as same candidate cold-producing medium, have halogenated hydrocarbons, this halogenated hydrocarbons and R32 are similarly the one of HFC cold-producing medium, and have the double bond of carbon in the composition.As this halogenated hydrocarbons, such as, there is HFO-1234yf (CF 3cF=CH 2; Tetrafluoeopropene), HFO-1234ze (CF 3-CH=CHF).In addition, in order to the HFC cold-producing medium not having the double bond of carbon like that in the composition with R32 is distinguished, there is the HFC cold-producing medium of the double bond of carbon in the composition, mostly use " O " of alkene (unsaturated hydrocarbons of the double bond with carbon is called alkene), and show as " HFO ".
The HFC cold-producing medium (comprising HFO cold-producing medium) of low GWP like this, although the HC cold-producing medium unlike the R290 as natural refrigerant has combustion property by force like that, but different from non-flame properties R410A, there is the combustibility (micro-combustion) of micro-combustion rank.Therefore the leakage that should be noted that cold-producing medium same with R290.Below, the flammable cold-producing medium will with more than micro-combustion rank (such as, being more than 2L in the classification of ASHRAE34) is called " combustible refrigerant ".
When combustible refrigerant leaks to the interior space, likely make indoor refrigerant concentration increase, and cause the possibility forming combustible concentration region.
Following aircondition is described in patent document 1, that is: in the aircondition using combustible refrigerant, gas sensor is possessed at the outer surface of indoor set, for detecting combustible refrigerant gas, indoor set is put type in the end, and the bottom of gas sensor machine disposed in the interior.If it is more than a reference value that the sensor of gas sensor detects voltage, then the control part of this aircondition is judged as that combustible refrigerant there occurs leakage, and is given the alarm by siren immediately.User can know that combustible refrigerant there occurs the situation of leakage thus, thus the process of the attendant etc. that can take to take a breath to indoor, calling out to repair.In addition, if be judged as, combustible refrigerant there occurs leakage, then control part carries out the control of the running stopping refrigerant loop immediately.Even if this aircondition is in running thus, also can utilizes the valve be present on refrigerant loop, cut off refrigerant loop immediately, thus combustible refrigerant can be suppressed to leak in large quantities.
Patent document 1: Japan Patent No. 4639451 publication
But, in the aircondition described in patent document 1, need the gas sensor that combustible refrigerant gas is detected, therefore there is the first problem causing manufacturing cost to raise.In addition, the user that combustible refrigerant leaks is known by alarm, the disposal of attendant etc. although can take to take a breath to indoor, calling out to repair, but there is Second Problem: until during taking above-mentioned disposal, general in the indoor as enclosure space, the combustible refrigerant of leakage likely can form combustible concentration region.In addition, owing to being judged as that combustible refrigerant there occurs the control part of leakage, carry out the control of the running stopping refrigerant loop immediately, therefore, it is possible to suppress combustible refrigerant to leak in large quantities, but a certain amount of combustible refrigerant cannot be avoided to leak.Therefore there is the 3rd problem: general in the indoor as enclosure space, the combustible refrigerant of leakage likely can form combustible concentration region.
Wherein, in the operation process of aircondition, make air to indoor blowout by the running of the fan of indoor set.Therefore just in case combustible refrigerant leaks into indoor, the combustible refrigerant of leakage also can because of the air of blowout in indoor diffusion come, therefore can not in formation combustible concentration region, indoor.But, in the process that aircondition stops, because the fan of indoor set also stops, therefore easy generation above-mentioned second or the 3rd problem.
Summary of the invention
The present invention is in order at least one problem in solving the problem is made, and object is to provide a kind of just in case cold-producing medium there occurs leakage, indoor refrigerant concentration local also can be suppressed to raise, can also suppress the aircondition of manufacturing cost.
Aircondition of the present invention has: kind of refrigeration cycle, and it makes refrigerant circulation via refrigerant piping; Off-premises station, it at least accommodates compressor and the outdoor heat converter of described kind of refrigeration cycle; And indoor set, it at least accommodates the indoor heat converter of described kind of refrigeration cycle, and be connected with described off-premises station via the prolongation pipe arrangement of the part as described refrigerant piping, described cold-producing medium has under atmospheric pressure large than the density of air density, and described indoor set possesses: framework; Upper space, it is configured with described indoor heat converter in the inside of described framework; Lower space, it is in the inside of described framework, is arranged at than described upper space position on the lower; Separating part, it is separated described upper space and described lower space; Fan, it is configured at described lower space; And fan drum, it is configured at described lower space, for covering described fan and being formed with blowout opening portion and suction opening portion, wind path opening portion is formed at described separating part, this wind path opening portion becomes the wind path between described upper space and described lower space, one side in described blowout opening portion or described suction opening portion, is connected to described wind path opening portion.
Preferably, be connected via connector portions between described indoor heat converter with described prolongation pipe arrangement, described connector portions is configured at described upper space.
Preferably, be connected between described indoor heat converter with described prolongation pipe arrangement via connector portions, described connector portions is configured at than described fan position by the top.
Preferably, be formed with front surface opening portion at the front surface of described framework, described framework at least possesses: the first front surface panel, and it can be installed on the bottom of described front surface opening portion removably; Second front surface panel, it can be installed on than described bottom part by the top in described front surface opening portion removably, and described connector portions is arranged at the position on the lower, upper end than described first front surface panel.
Preferably, described indoor heat converter has pipe junction surface each other, and this pipe junction surface each other becomes a part for the stream of described cold-producing medium.
Preferably, be provided with in described framework: under shed portion, it becomes a side of suction inlet or blow-off outlet; Upper shed portion, it is configured at than position by the top, described under shed portion, and becoming the opposing party of described suction inlet or described blow-off outlet, described under shed portion is provided with diffusion mechanism, and this diffusion mechanism makes to spread from the interior effluent air of described framework.
Preferably, described diffusion mechanism comprises grid, and this grid has the shape radially expanded towards the outside from the inside of described framework.
Preferably, described diffusion mechanism comprises filter, and this filter is made up of non-woven fabrics or net.
Preferably, described fan is aerofoil fan or diagonal flow fan.
Preferably, in the process that described indoor set stops, described fan rotatably stops.
Preferably, at least one party of described separating part and described framework, be formed with the open pore making described prolongation pipe arrangement through, between the periphery and the inner circumferential of described open pore of described prolongation pipe arrangement, be filled with gap-fill part.
Preferably, described gap-fill part uses the expanded material of separated foam to be formed.
Preferably, be formed with the open pore making described prolongation pipe arrangement through in described framework, described open pore is arranged at top or the end face of described framework.
Preferably, described upper space be arranged in produced by described fan air stream, position than described lower space downstream.
Preferably, described upper space is arranged in the air stream produced by described fan, the position leaning on upstream side than described lower space.
Preferably, described indoor set puts type indoor set in the end being arranged at flooring.
Preferably, described cold-producing medium is combustible refrigerant.
According to the present invention, just in case cold-producing medium there occurs leakage at indoor set, the cold-producing medium of leakage also can be made to spread and flow out to indoor, therefore, it is possible to suppress indoor refrigerant concentration local to raise.In addition, according to the present invention, do not need the sensor detecting refrigrant leakage, therefore, it is possible to suppress the manufacturing cost of aircondition.
Accompanying drawing explanation
Fig. 1 is the refrigerant loop figure of the schematic arrangement of the aircondition representing embodiments of the present invention 1.
Fig. 2 is the front view of the surface structure of the indoor set 1 of the aircondition representing embodiments of the present invention 1.
Fig. 3 is the in-built front view of the indoor set 1 of the aircondition schematically representing embodiments of the present invention 1.
Fig. 4 is the in-built side view of the indoor set 1 of the aircondition schematically representing embodiments of the present invention 1.
Fig. 5 is the front view of the indoor heat converter 7 of the aircondition schematically representing embodiments of the present invention 1 and the structure of circumferential component thereof.
Fig. 6 is the front view of the structure of the suction inlet 112 of the indoor set 1 of the variation schematically representing embodiments of the present invention 1.
Fig. 7 is the sectional view of the VII-VII section representing Fig. 6.
Fig. 8 is the in-built front view of the indoor set 1 of the aircondition schematically representing embodiments of the present invention 2.
Fig. 9 is the in-built side view of the indoor set 1 of the aircondition schematically representing embodiments of the present invention 2.
Figure 10 is the in-built front view of the indoor set 1 of the first variation schematically representing embodiments of the present invention 2.
Figure 11 is the in-built side view of the indoor set 1 of the first variation schematically representing embodiments of the present invention 2.
Figure 12 is the in-built front view of the indoor set 1 of the second variation schematically representing embodiments of the present invention 2.
Figure 13 is the in-built side view of the indoor set 1 of the second variation schematically representing embodiments of the present invention 2.
Figure 14 is the in-built front view of the indoor set 1 of the 3rd variation schematically representing embodiments of the present invention 2.
Figure 15 is the in-built side view of the indoor set 1 of the 3rd variation schematically representing embodiments of the present invention 2.
Figure 16 is the figure of the structure of the open pore of the aircondition representing embodiments of the present invention 3.
Figure 17 is the figure of the first variation of the structure of the open pore of the aircondition representing embodiments of the present invention 3.
Figure 18 is the figure of the second variation of the structure of the open pore of the aircondition representing embodiments of the present invention 3.
Figure 19 is the in-built front view of the indoor set 1 of the aircondition schematically representing embodiments of the present invention 4.
Figure 20 is the in-built side view of the indoor set 1 of the aircondition schematically representing embodiments of the present invention 4.
Description of reference numerals: 1... indoor set; 2... off-premises station; 3... compressor; 4... flow of refrigerant circuit switching device; 5... outdoor heat converter; The outdoor Air Blast fan of 5f...; 6... decompressor; 7... indoor heat converter; The indoor Air Blast fan of 7f...; 9a, 9b... indoor tube; 10a, 10b... extend pipe arrangement; 11... pipe arrangement is sucked; 12... pipe arrangement is discharged; 13a, 13b... extend pipe arrangement connection valve; 14a, 14b, 14c... service port; 15a, 15b... connector portions; 18a, 18b... thermal insulation barriers; 19,19a, 19b... gap-fill part; 20... separating part; 20a... wind path opening portion; 25... electrical appliance kit; 26... operating portion; 30,30a, 30b, 31... open pore; 40... kind of refrigeration cycle; 61... collector supervisor; 62... collector arm; 63... indoor cold-producing medium arm; 70... fin; 71... heat pipe; 71a, 71b... end; 72... hair clip bend pipe; 73...U shape bend pipe; 81... wind path space; 91... inhaled air temperature sensor; 92... heat exchanger entrance temperature sensor; 93... heat-exchanger temperature sensor; 107... impeller; 108... fan drum; 108a... blows out opening portion; 108b... suction opening portion; 111... framework; 112... suction inlet; 113... blow-off outlet; 114a... first front surface panel; 114b... second front surface panel; 114c... the 3rd front surface panel; 115a... lower space; 115b... upper space; 120... suction grid; 121... filter; 130... recess; 130a... main part; 130b... oral area; 131,133... lid; 132... bellying; 132a... main part; 132b... oral area; W... brazed portion.
Detailed description of the invention
Embodiment 1
The aircondition of embodiment 1 of the present utility model is described.Fig. 1 is the refrigerant loop figure of the schematic arrangement of the aircondition representing present embodiment.In addition, comprise Fig. 1 in figures in the following, there is the situation that the size relationship of each component parts, shape etc. are different from reality.
As shown in Figure 1, aircondition has the kind of refrigeration cycle 40 making refrigerant circulation.Kind of refrigeration cycle 40 has following structure, that is: via refrigerant piping, successively compressor 3, flow of refrigerant circuit switching device 4, outdoor heat converter 5 (heat source side heat exchanger), decompressor 6 and indoor heat converter 7 (load-side heat exchanger) are connected for ring-type.In addition, aircondition has: be such as arranged at indoor indoor set 1 and be such as arranged at outdoor off-premises station 2.Between indoor set 1 and off-premises station 2, connect via prolongation pipe arrangement 10a, 10b of the part as refrigerant piping.
As the cold-producing medium circulated in kind of refrigeration cycle 40, such as, use micro-combustion cold-producing medium such as R32, HFO-1234yf, HFO-1234ze or the combustion property by force such as R290, R1270 cold-producing medium.Above-mentioned cold-producing medium can use as unitary system cryogen, also can as being mixed with two or more mix refrigerants to use.
Compressor 3 compresses sucked low pressure refrigerant, and the fluid device that it can be used as high-pressure refrigerant to discharge.Flow of refrigerant circuit switching device 4 is when cooling operation with when heating running, to the device that the flow direction of the cold-producing medium in kind of refrigeration cycle 40 switches.As flow of refrigerant circuit switching device 4, such as, use cross valve.Outdoor heat converter 5 is the heat exchangers playing function when cooling operation as condenser, playing function when heating running as evaporimeter.In outdoor heat converter 5, carry out in the cold-producing medium of internal circulation, the heat exchange with the air (extraneous air) of being blown by outdoor Air Blast fan 5f described later.Decompressor 6 reduces pressure to high-pressure refrigerant and becomes the device of low pressure refrigerant.As decompressor 6, such as, use the electric expansion valve etc. that can regulate aperture.Indoor heat converter 7 is the heat exchangers playing function when cooling operation as evaporimeter, playing function when heating running as condenser.In indoor heat converter 7, carry out in the cold-producing medium of internal circulation, the heat exchange with the air of being blown by indoor Air Blast fan 7f described later.Wherein, cooling operation is the running of the cold-producing medium supplying low-temp low-pressure to indoor heat converter 7, heats the running that running is the cold-producing medium supplying HTHP to indoor heat converter 7.
Contain at off-premises station 2: compressor 3, flow of refrigerant circuit switching device 4, outdoor heat converter 5 and decompressor 6.In addition, the outdoor Air Blast fan 5f supplying extraneous air to outdoor heat converter 5 is contained at off-premises station 2.Outdoor Air Blast fan 5f is arranged opposedly with outdoor heat converter 5.By making outdoor Air Blast fan 5f rotate, thus generate the air stream through outdoor heat converter 5.Such as propeller type fan is used as outdoor Air Blast fan 5f.In the air stream that outdoor Air Blast fan 5f generates at this outdoor Air Blast fan 5f, such as, be configured at the downstream of outdoor heat converter 5.
At off-premises station 2, be configured with as refrigerant piping: the refrigerant piping that the prolongation pipe arrangement connection valve 13a of gas side (during cooling operation) is connected with flow of refrigerant circuit switching device 4, be connected to the suction pipe arrangement 11 of the suction side of compressor 3, be connected to the discharge pipe arrangement 12 of the discharge side of compressor 3, by the refrigerant piping that flow of refrigerant circuit switching device 4 is connected with outdoor heat converter 5, by the refrigerant piping that outdoor heat converter 5 is connected with decompressor 6, and by refrigerant piping that decompressor 6 is connected with the prolongation pipe arrangement connection valve 13b of hydraulic fluid side (during cooling operation).Extend pipe arrangement connection valve 13a to be made up of the two-port valve that can carry out the switching opening and close, in its one end, flare type joint is installed.In addition, extend pipe arrangement connection valve 13b to be made up of the triple valve that can carry out the switching opening and close, the service port 14a that when kind of refrigeration cycle 40 (operation from cold-producing medium to) before filling uses is installed in its one end when vacuumizing, at the other end, flare type joint is installed.
Under any state when cooling operation and when heating running, in discharge pipe arrangement 12, all flowing has the gas refrigerant of the HTHP compressed by compressor 3.Under any state when cooling operation and when heating running, there is the cold-producing medium (gas refrigerant or two-phase system cryogen) of the low-temp low-pressure through evaporation sucking in pipe arrangement 11 all flowings.Be connected with the service port 14b of the band flare type joint of low-pressure side at suction pipe arrangement 11, be connected with the service port 14c of on high-tension side band flare type joint at discharge pipe arrangement 12.Service port 14b, 14c are used for when aircondition is installed, repairing time test running when, Bonding pressure meter also measures operating pressure and used.
Indoor heat converter 7 is contained at indoor set 1.In addition, be provided with to the air fed indoor Air Blast fan 7f of indoor heat converter 7 at indoor set 1.By making indoor Air Blast fan 7f rotate, thus generate the air stream through indoor heat converter 7.As indoor Air Blast fan 7f, according to the form of indoor set 1, use centrifugal fan (such as, sirocco fan, turbofan etc.), cross flow fan, diagonal flow fan, aerofoil fan (such as, propeller type fan) etc.The indoor Air Blast fan 7f of this example, is configured at the upstream side of indoor heat converter 7, but also can be configured at the downstream of indoor heat converter 7 in the air stream that this indoor Air Blast fan 7f generates.
In addition, in indoor set 1, be provided with following sensor, that is: inhaled air temperature sensor 91, it detects the temperature of the room air sucked indoor; Heat exchanger entrance temperature sensor 92, it detects the refrigerant temperature of the inlet portion (heating export department during running) during indoor heat converter 7 cooling operation; Heat-exchanger temperature sensor 93, its refrigerant temperature to the two-phase portion of indoor heat converter 7 (evaporating temperature or condensation temperature) detects.The sensor class can to control part (not shown) the output detections signal controlling indoor set 1 or aircondition entirety.
By the indoor tube 9a of gas side in the refrigerant piping of indoor set 1, at the connecting portion be connected with the prolongation pipe arrangement 10a of gas side, be provided with for connecting the connector portions 15a (such as, flare type joint) extending pipe arrangement 10a.In addition, by the indoor tube 9b of hydraulic fluid side in the refrigerant piping of indoor set 1, at the connecting portion be connected with the prolongation pipe arrangement 10b of hydraulic fluid side, be provided with for connecting the connector portions 15b (such as, flare type joint) extending pipe arrangement 10b.
Next, the action of the kind of refrigeration cycle 40 of aircondition is described.First, action during cooling operation is described.In FIG, the flow direction of cold-producing medium when solid arrow represents cooling operation.In cooling operation, refrigerant loop is configured to: utilize flow of refrigerant circuit switching device 4, switch refrigerant flow path as indicated by the solid line, and the cold-producing medium of low-temp low-pressure is flowed in indoor heat converter 7.
From the gas refrigerant of the HTHP that compressor 3 is discharged, via flow of refrigerant circuit switching device 4, first inflow outdoor heat exchanger 5.In cooling operation, outdoor heat converter 5 plays function as condenser.That is, in outdoor heat converter 5, carry out in the cold-producing medium of internal circulation, the heat exchange with the air (extraneous air) of being blown by outdoor Air Blast fan 5f, the condensation heat of cold-producing medium is dispelled the heat to wind pushing air.Flow into the condensation of refrigerant of outdoor heat converter 5 thus and become the liquid refrigerant of high pressure.The liquid refrigerant of high pressure flows into decompressor 6, and decompression and become the two-phase system cryogen of low pressure.The two-phase system cryogen of low pressure, via prolongation pipe arrangement 10b, flows into the indoor heat converter 7 of indoor set 1.In cooling operation, indoor heat converter 7 plays function as evaporimeter.That is, in indoor heat converter 7, carry out in the cold-producing medium of internal circulation, the heat exchange with the air (room air) of being blown by indoor Air Blast fan 7f, from the heat of evaporation of wind pushing air absorption refrigeration agent.Thus, flow into the cold-producing medium evaporation of indoor heat converter 7, and become gas refrigerant or the two-phase system cryogen of low pressure.In addition, the air of being blown by indoor Air Blast fan 7f, is cooled because of the heat-absorbing action of cold-producing medium.The gas refrigerant of the low pressure of evaporating in indoor heat converter 7 or two-phase system cryogen, via prolongation pipe arrangement 10a and flow of refrigerant circuit switching device 4, and sucked by compressor 3.The cold-producing medium being drawn into compressor 3 is compressed, thus becomes the gas refrigerant of HTHP.Repeatedly carry out with cocycle in cooling operation.
Next, action when heating running is described.In FIG, dotted arrow represents the flow direction of cold-producing medium when heating running.Heating in running, refrigerant loop is configured to: utilize flow of refrigerant circuit switching device 4, switch as represented by dashed line to refrigerant flow path, and the cold-producing medium of HTHP is flowed in indoor heat converter 7.When heating running, cold-producing medium flows to the direction contrary with during cooling operation, and indoor heat converter 7 plays function as condenser.That is, in indoor heat converter 7, carry out in the cold-producing medium of internal circulation, the heat exchange with the air of being blown by indoor Air Blast fan 7f, the condensation heat of cold-producing medium is dispelled the heat to wind pushing air.Thus, the air of being blown by indoor Air Blast fan 7f, is heated because of the thermolysis of cold-producing medium.
Fig. 2 is the front view of the surface structure of the indoor set 1 of the aircondition representing present embodiment.Fig. 3 is the front view of the internal structure (taking off the state after front surface panel) schematically representing indoor set 1.Fig. 4 is the in-built side view schematically representing indoor set 1.The left of Fig. 4 represents the front-surface side (indoor) of indoor set 1.In the present embodiment, type indoor set 1 is put at the end exemplifying the ground of the indoor be arranged at as air-conditioning object space as indoor set 1.In addition, each component parts position relationship each other (such as, upper and lower relation etc.) in the following description is the relation be set to by indoor set 1 under the state that can use in principle.
As shown in Figure 2 to 4, indoor set 1 possesses framework 111, and this framework 111 has the rectangular-shaped shape of lengthwise.The suction inlet 112 (example under shed portion) for the air in suction chamber is formed in the front surface bottom of framework 111.The suction inlet 112 of this example is arranged at than central portion position on the lower on the above-below direction of framework 111, and is arranged at the position of Near Ground.On the front surface top of framework 111, namely in the position higher than the height of suction inlet 112, be formed with blow-off outlet 113 (example in upper shed portion), this blow-off outlet 113 by the air that sucks from suction inlet 112 to indoor blowout.The blow-off outlet 113 of this example is arranged at the central portion position by the top of the ratio above-below direction of framework 111.In the front surface of framework 111 than suction inlet 112 by the top and than blow-off outlet 113 position on the lower, be provided with operating portion 26.In operating portion 26, the running carrying out indoor set 1 (aircondition) by the operation of user starts to operate, the switching of running end operation, operation mode, design temperature and setting air quantity setting etc.
Framework 111 is the casing of hollow, is formed with front surface opening portion at the front surface of framework 111.Framework 111 possesses: the first front surface panel 114a, the second front surface panel 114b and the 3rd front surface panel 114c that can be installed on front surface opening portion removably.First front surface panel 114a, the second front surface panel 114b and the 3rd front surface panel 114c all have the outer shape of roughly rectangular flat plate shape.First front surface panel 114a can be installed on the bottom of the front surface opening portion of framework 111 removably.Above-mentioned suction inlet 112 is formed at the first front surface panel 114a.The top of the second front surface panel 114b and the first front surface panel 114a is adjacent to configure, and can be installed on the central portion on the above-below direction of the front surface opening portion of framework 111 removably.Second front surface panel 114b is provided with aforesaid operations portion 26.The top of the 3rd front surface panel 114c and the second front surface panel 114b is adjacent to configure, and can be installed on the top of the front surface opening portion of framework 111 removably.Above-mentioned blow-off outlet 113 is formed at the 3rd front surface panel 114c.
The inner space of framework 111 is roughly divided into: the lower space 115a becoming air supplying part and the top being positioned at lower space 115a and become the upper space 115b of heat exchange department.Separated by separating part 20 between lower space 115a and upper space 115b.Separating part 20 such as has flat shape, and the configuration of general horizontal ground.The wind path opening portion 20a of the wind path become between lower space 115a and upper space 115b is at least formed at separating part 20.By the first front surface panel 114a is taken off from framework 111, thus lower space 115a is exposed to front-surface side, by being taken off from framework 111 by the second front surface panel 114b and the 3rd front surface panel 114c, thus upper space 115b is exposed to front-surface side.That is, the height being provided with the height of separating part 20 and the upper end (or lower end of the second front surface panel 114b) of the first front surface panel 114a is unanimous on the whole.Wherein, separating part 20 can form with fan drum 108 described later, also can form with drip tray described later, can also with fan drum 108 and drip tray split formed.
Be configured with indoor Air Blast fan 7f at lower space 115a, this indoor Air Blast fan 7f produces the air stream from suction inlet 112 towards blow-off outlet 113.The indoor Air Blast fan 7f of this example is sirocco fan, possesses: not shown motor and be connected with the output shaft of motor and multiple wing circumferentially with the impeller 107 configured at equal intervals.The rotating shaft (output shaft of motor) of impeller 107 is configured to the depth direction of framework 111 almost parallel.Impeller 107 is covered by circinate fan drum 108.Be arranged at the suction opening portion 108b of the whirlpool immediate vicinity of fan drum 108, configure in the mode opposed with suction inlet 112.In addition, the blowout opening portion 108a of fan drum 108 configures in mode upward, such as, be directly connected in the wind path opening portion 20a of separating part 20.The part at least Inner Constitution wind path space 81 of fan drum 108 in lower space 115a.Wherein, wind path space 81 is inner spaces of framework 111, and is the space of the air wind path become from suction inlet 112 towards blow-off outlet 113 or the space that is communicated with this space.
In addition, lower space 115a is provided with electrical appliance kit 25, this electrical appliance kit 25 such as contains the microcomputer, various electric component, substrate etc. of the control part forming indoor set 1 etc.
Upper space 115b, in the air stream produced by indoor Air Blast fan 7f, is positioned at the position than lower space 115a downstream.Wind path space 81 in upper space 115b is configured with indoor heat converter 7.Drip tray (not shown) is provided with, for being received in the condensed water of the surface condensation of indoor heat converter 7 in the below of indoor heat converter 7.Drip tray can be formed as a part for separating part 20, also can with separating part 20 split formed and be configured on separating part 20.
Fig. 5 is the front view of the structure schematically representing indoor heat converter 7 and circumferential component thereof.As shown in Figure 5, the indoor heat converter 7 of this example is the heat exchanger of plate-shaped fins tubular type, has: separate regulation interval and and multiple fins 70 of row arrangement and through multiple fin 70 make cold-producing medium at multiple heat pipes 71 of internal circulation.Heat pipe 71 is configured to comprise: multiple hair clip bend pipe 72, and they possess the longer straight sections of through multiple fin 70; Multiple U-bend 73, multiple hair clip bend pipe 72 communicates with each other by they.Engaged by brazed portion W (example at junction surface) between hair clip bend pipe 72 with U-bend 73.In Figure 5, brazed portion W is represented with bullet.In addition, the radical of heat pipe 71 can be one and also can be many.In addition, form the radical of the hair clip bend pipe 72 of a heat pipe 71, can be one and also can be many.
Cylindric collector supervisor 61 is connected with at the indoor tube 9a of gas side.Multiple collector arm 62 is connected with being responsible for 61 branches at collector.The end 71a of a side of heat pipe 71 is connected at multiple collector arm 62.Be connected with multiple indoor cold-producing medium arm 63 indoor tube 9b branch in hydraulic fluid side.The end 71b of the opposing party of heat pipe 71 is connected at multiple indoor cold-producing medium arm 63.Between above-mentioned indoor tube 9a is responsible for 61 with collector, collector is responsible between 61 with collector arm 62, between collector arm 62 with heat pipe 71, between indoor tube 9b with indoor cold-producing medium arm 63 and indoor cold-producing medium arm 63 is engaged by brazed portion W with between heat pipe 71.
Turn back to Fig. 3 and Fig. 4, in the present embodiment, the brazed portion W of indoor heat converter 7 is (at this, comprise the brazed portion W of the circumferential component such as indoor tube 9a, collector supervisor 61, collector arm 62, indoor cold-producing medium arm 63, indoor tube 9b), be configured at the wind path space 81 in upper space 115b.In addition, by the connector portions 15a be connected between indoor tube 9a with prolongation pipe arrangement 10a and the connector portions 15b that will be connected between indoor tube 9b with prolongation pipe arrangement 10b, the wind path space 81 in upper space 115b is configured at too.
As mentioned above, in the present embodiment, as the cold-producing medium of circulation in kind of refrigeration cycle 40, such as, the combustible refrigerants such as R32, HFO-1234yf, HFO-1234ze, R290, R1270 are used.Therefore just in case when indoor set 1 there occurs refrigrant leakage, indoor refrigerant concentration rises, and likely causes forming combustible concentration region.Particularly when aircondition stops, because indoor Air Blast fan 7f also stops, being therefore difficult to utilize wind pushing air that leakage of refrigerant is spread.
Above-mentioned combustible refrigerant, under atmospheric pressure (such as, temperature is room temperature (25 DEG C)) has the density larger than air.Therefore in the position that the height of distance flooring is higher, when there is refrigrant leakage, the cold-producing medium of leakage spreads in decline, and refrigerant concentration becomes even in the interior space, and therefore refrigerant concentration is difficult to raise.In contrast, in the position lower apart from the height of flooring, when there is refrigrant leakage, the cold-producing medium of leakage is accumulated in the lower position of Near Ground, therefore refrigerant concentration easily raises local.The possibility forming combustible concentration region is caused relatively to raise thus.
Likely refrigrant leakage is there is: the brazed portion W (at this, comprising the brazed portion W of circumferential component) of indoor heat converter 7 and connector portions 15a, 15b in indoor set 1.In the present embodiment, at least brazed portion W is configured at wind path space 81 in upper space 115b, is namely configured at impeller 107 (wing) wind path space 81 by the top than indoor Air Blast fan 7f, and this indoor Air Blast fan 7f is configured in lower space 115a.In addition, in the present embodiment, except brazed portion W, connector portions 15a, 15b are also configured at the wind path space 81 in upper space 115b.In addition, the blowout opening portion 108a of fan drum 108, is connected to the wind path opening portion 20a of separating part 20.Therefore in the stopped process of aircondition (namely, in the stopped process of indoor Air Blast fan 7f), if there is refrigrant leakage at brazed portion W or connector portions 15a, 15b, then leak into the most amount of the cold-producing medium of upper space 115b, can not be roundabout to other paths of framework 111 inside, but drip in fan drum 108 via wind path opening portion 20a and blowout opening portion 108a.In fan drum 108, be provided with the impeller 107 possessing multiple wing, therefore flow into the cold-producing medium in fan drum 108, to shunt to the multiple streams marked off by multiple wing, while drop onto below with the surface collision of multiple wing.Therefore, in fan drum 108, cold-producing medium spreads in atmosphere.The cold-producing medium of diffusion in fan drum 108, flows out to indoor via the suction opening portion 108b of fan drum 108 and suction inlet 112.Owing to flowing out to indoor moment cold-producing medium diffusion, therefore, it is possible to prevent refrigerant concentration local from raising.Thus just in case combustible refrigerant leaks at indoor set 1, also can suppress in formation combustible concentration region, indoor.Particularly when type indoor set 1 is put at the end, the position to indoor leakage of refrigerant occurs, easily become the position that Near Ground is lower, the cold-producing medium therefore leaked easily is accumulated in the lower position of Near Ground, therefore effective especially.
In addition, in the present embodiment, without the need to detecting the sensor of refrigrant leakage, therefore, it is possible to suppress indoor set 1 and comprise its manufacturing cost of aircondition.
Fig. 6 is the front view of the structure of the suction inlet 112 of the indoor set 1 schematically representing modified embodiment of the present embodiment.Fig. 7 is the sectional view of the VII-VII section representing Fig. 6.As shown in Fig. 6 and Fig. 7, the suction inlet 112 (under shed portion) of this variation is provided with suction grid 120 (example of diffusion mechanism).Suction grid 120 has the shape radially expanded towards the outside from the inside of framework 111.In addition, the inner side (private side of framework 111) of suction grid 120 is provided with filter 121 (example of diffusion mechanism).Filter 121 is made up of non-woven fabrics or net.
According to this variation, by being provided with suction grid 120 at suction inlet 112, can making to flow out to indoor leakage of refrigerant from suction inlet 112 thus and being spread in wider.Therefore, it is possible to suppress more reliably in formation combustible concentration region, indoor.In addition, by being provided with filter 121 at suction inlet 112, thus the flowing flowing out to indoor leakage of refrigerant from suction inlet 112 can be upset, leakage of refrigerant can be made as a result to spread further and flow out to indoor.Therefore, it is possible to suppress more reliably in formation combustible concentration region, indoor.
In addition, suction grid 120 can be replaced, and use the suction grid with the shape expanded towards the outside and in the lateral direction from the inside of framework 111, also can use the suction grid with the shape expanded towards the outside and vertically from the inside of framework 111, can also use overlapping on the flow direction of air or leakage of refrigerant for above-mentioned two kinds of suction grids.
Embodiment 2
The aircondition of embodiments of the present invention 2 is described.Fig. 8 is the in-built front view of the indoor set 1 of the aircondition schematically representing present embodiment.Fig. 9 is the in-built side view schematically representing indoor set 1.In addition, for having the function identical with embodiment 1 and the inscape of effect, also the description thereof will be omitted to mark identical Reference numeral.
As shown in FIG. 8 and 9, indoor tube 9a, 9b and the part that extends near pipe arrangement 10a, 10b in separating part 20, be formed with the container-like recess 130 that recessed and lower space 115a side, upper space 115b side is protruded.Space in recess 130 is a part of upper space 115b, but lower than the height of the upper end (lower end of the second front surface panel 114b) of the first front surface panel 114a.Be formed with opening portion in the front-surface side of recess 130, be provided with in this opening portion and use screw etc. and can the lid 131 of dismounting.If take off lid 131, then the space in recess 130 is exposed in front-surface side via opening portion.On the other hand, if mounting cover 131, then the front-surface side of recess 130 is closed.
Connector portions 15a, 15b are configured at the space in recess 130.That is, connector portions 15a, 15b are configured in the position on the lower, upper end than the first front surface panel 114a.Thus by taking off the first front surface panel 114a, and then taking off lid 131, connector portions 15a can be made thus, 15b exposes in front-surface side.
Put at the general end in type indoor set, connector portions 15a, 15b are configured in lower space 115a together with electrical appliance kit 25 etc.Therefore when type indoor set is put at the general end, by only the first front surface panel 114a being taken off from framework 111, electrical appliance kit 25 and connector portions 15a, 15b just can be made to expose in front-surface side, thus can carry out the installation of indoor set, the operation such as repairing or dismounting (such as, electric wiring and refrigerant piping connection, take off).
On the other hand, in the structure of the indoor set 1 of the embodiment 1 represented at Fig. 2 ~ Fig. 4, connector portions 15a, 15b are configured in upper space 115b.If therefore only take off the first front surface panel 114a, then cannot carry out the connection of refrigerant piping (indoor tube 9a, 9b and prolongation pipe arrangement 10a, 10b), take off.Therefore when carry out electric wiring and refrigerant piping connection, take off, not only need to take off the first front surface panel 114a, also need to take off the second front surface panel 114b.
In the present embodiment, connector portions 15a, 15b in upper space 115b, but are configured in the position on the lower, upper end than the first front surface panel 114a, therefore by taking off the first front surface panel 114a and lid 131, it just can be made to expose in front-surface side.Therefore in the present embodiment, even if do not take off the second front surface panel 114b, also can carry out the connection of electric wiring and refrigerant piping, take off, therefore easily carry out the operations such as the installation of indoor set 1, repairing or dismounting.In addition, under the common using state that recess 130 is provided with lid 131, the front-surface side of recess 130 is closed.Therefore when connector portions 15a, 15b there occurs refrigrant leakage, the most amount of the cold-producing medium of leakage can be made, other paths not to framework 111 inside are roundabout, but via wind path opening portion 20a and blowout opening portion 108a, flow in fan drum 108.Therefore in the present embodiment, also the effect same with embodiment 1 can be obtained.
Figure 10 is the in-built front view of the indoor set 1 of the first variation schematically representing present embodiment.Figure 11 is the in-built side view schematically representing indoor set 1.As shown in figs.10 and 11, in this variation, shape and the embodiment 1 of separating part 20 are similarly tabular.In this variation, be formed with bellying 132 in a part for the sidewall of the blowout opening portion 108a of fan drum 108, within this bellying 132, the mode of a part for bag refrigerant piping (indoor tube 9a, 9b and prolongation pipe arrangement 10a, 10b) bloats.Be formed with opening portion in the front-surface side of bellying 132, be provided with in this opening portion and use screw etc. and can the lid 133 of dismounting.If take off lid 133, then the space in bellying 132 is exposed in front-surface side via opening portion.On the other hand, if mounting cover 133, then the front-surface side of bellying 132 is closed.Bellying 132 is same with other parts of fan drum 108, is positioned at lower space 115a.
Connector portions 15a, 15b are configured at the space in bellying 132.That is, connector portions 15a, 15b are configured in the position on the lower, upper end than the first front surface panel 114a.Thus by taking off the first front surface panel 114a, and then take off lid 133, thus connector portions 15a can be made, 15b exposes in front-surface side.In addition, connector portions 15a, 15b are configured in than impeller 107 (wing) position by the top.Therefore according to this variation, the effect same with the structure that Fig. 8 and Fig. 9 represents can also be obtained.
In addition, the structure of the indoor set 1 of present embodiment is not limited to the structure that Fig. 8 ~ Figure 11 represents.Such as, in the structure of the embodiment 1 represented at Fig. 2 ~ Fig. 4 etc., also can expand the height (length of above-below direction) of the first front surface panel 114a and reduce the height (length of above-below direction) of the second front surface panel 114b, to be configured in the upper end (lower end of the second front surface panel 114b) of the first front surface panel 114a than the connector portions 15a in upper space 115b, 15b position by the top.According to this structure, same with the structure that Fig. 8 ~ Figure 11 represents, even if do not take off the second front surface panel 114b, also can carry out the connection of electric wiring and refrigerant piping, take off.
In addition, as the shape of the recess 130 of a part for separating part 20, be not limited to container-like (having bottom tube-like) that Fig. 8 and Fig. 9 represents.Figure 12 is the in-built front view of the indoor set 1 of the second variation schematically representing present embodiment.Figure 13 is the in-built side view schematically representing indoor set 1.The recess 130 that Figure 12 and Figure 13 represents has gyalectiform shape, and it possesses: main part 130a and the oral area 130b more carefully formed relative to main part 130a.Space in main part 130a is communicated with upper space 115b (arranging the space of indoor heat converter 7) via oral area 130b.That is, the space in main part 130a becomes a part of upper space 115b.Space in main part 130a contains connector portions 15a, 15b.According to this variation, the space of collecting connector portions 15a, 15b becomes a part of upper space 115b, therefore, it is possible to obtain the effect same with the structure that Fig. 8 and Fig. 9 represents.Like this, as long as make the space of collecting connector portions 15a, 15b be communicated with upper space 115b (arranging the space of indoor heat converter 7), recess 130 just can have various shape.
In addition, the shape of bellying 132 is not limited to the shape that Figure 10 and Figure 11 represents.Figure 14 is the in-built front view of the indoor set 1 of the 3rd variation schematically representing present embodiment.Figure 15 is the in-built side view schematically representing indoor set 1.Bellying 132 shown in Figure 14 and Figure 15 has the shape of horizontal gyalectiform, possesses: main part 132a and the oral area 132b more carefully formed relative to main part 132a.Space in main part 132a is communicated with blowout opening portion 108a via oral area 132b.Space in main part 132a contains connector portions 15a, 15b.According to this variation, the space of collecting connector portions 15a, 15b is communicated with blowout opening portion 108a, and connector portions 15a, 15b are configured in than indoor Air Blast fan 7f position by the top, therefore also can obtain the effect same with the structure that Figure 10 and Figure 11 represents.Like this, as long as make the space of collecting connector portions 15a, 15b be communicated with blowout opening portion 108a, bellying 132 just can have various shape.
Embodiment 3
The aircondition of embodiments of the present invention 3 is described.In above-mentioned embodiment 1 or 2, at framework 111, separating part 20 (comprising recess 130) and bellying 132 etc., be provided with for extending the through open pore of pipe arrangement 10a, 10b.Such as, in the structure that Fig. 3 represents, make that prolongation pipe arrangement 10a, 10b are through to be arranged at the open pore of separating part 20 and to be arranged at the open pore of framework 111, be removed to framework 111 in framework 111 thus, and be connected with off-premises station 2.
Figure 16 is the figure of the structure of the open pore of the aircondition representing present embodiment.Open pore 30a, 30b that Figure 16 represents are diapsids, and prolongation pipe arrangement 10a, 10b can be made separately through.As shown in figure 16, extending the periphery of pipe arrangement 10a, 10b, thermal insulation barriers 18a, 18b of being formed by blown polyurethane materials etc. is wound with respectively.The internal diameter of open pore 30a, 30b is almost identical with the external diameter of thermal insulation barriers 18a, 18b or more bigger than it.Therefore the processing dimension of the site layout project (comprising bending, length coupling) of pipe arrangement 10a, 10b is extended, with just enough under general permission rank same.That is, site operation is improved.
Between the periphery of thermal insulation barriers 18a, 18b and the inner circumferential of open pore 30a, 30b, be filled with gap-fill part 19a, 19b respectively.Gap-fill part 19a, 19b use the expanded material of separated foam and are formed.By filling gap-fill part 19a, 19b, thus thermal insulation barriers 18a, 18b periphery and between open pore 30a, 30b, the tube axial direction extending pipe arrangement 10a, 10b is closed airtightly.Therefore, by the circulation of the gaseous fluid (such as, leakage of refrigerant) via the gap between the periphery of thermal insulation barriers 18a, 18b and the inner circumferential of open pore 30a, 30b, suppress for Min..
Figure 17 is the figure of the first variation of the structure representing open pore.The open pore 30 that Figure 17 represents is single-orifice types, for making prolongation pipe arrangement 10a, 10b intensively through.As shown in figure 17, between the periphery of thermal insulation barriers 18a, 18b and the inner circumferential of open pore 30, be filled with gap-fill part 19.Gap-fill part 19 uses the expanded material of separated foam to be formed.By filling gap-fill part 19, thus between the periphery of thermal insulation barriers 18a, 18b and the inner circumferential of open pore 30, the tube axial direction extending pipe arrangement 10a, 10b is closed airtightly.Therefore by the circulation of the gaseous fluid via the gap between the periphery of thermal insulation barriers 18a, 18b and the inner circumferential of open pore 30, suppress for Min..
Figure 18 is the figure of the second variation of the structure representing open pore.The open pore 31 that Figure 18 represents is cut type of the end cut from plate-shaped member.As shown in figure 18, between the periphery of thermal insulation barriers 18a, 18b and the inner circumferential of open pore 31, be filled with gap-fill part 19.By filling gap-fill part 19, thus between the inner circumferential of the periphery of thermal insulation barriers 18a, 18b and open pore 30, the tube axial direction extending pipe arrangement 10a, 10b is closed airtightly.Therefore by the circulation of the gaseous fluid via the gap between the periphery of thermal insulation barriers 18a, 18b and the inner circumferential of open pore 30, suppress for Min..
Such as, in the structure represented at Fig. 3, the open pore being formed at separating part 20 is made to become structure as shown in Figure 16 ~ Figure 18, thus brazed portion W in upper space 115b or connector portions 15a, 15b are when there occurs refrigrant leakage, can the cold-producing medium of Leakage prevention via the gap of open pore, leak into lower space 115a (outside of fan drum 108).Therefore make whole amount of the cold-producing medium leaked at brazed portion W or connector portions 15a, 15b, other paths not to framework 111 inside are roundabout, but can flow in fan drum 108 via wind path opening portion 20a and blowout opening portion 108a.Therefore, it is possible to make whole amount of the cold-producing medium of leakage, in fan drum 108 after diffusion, flow out to indoor, therefore, it is possible to suppress in formation combustible concentration region, indoor.
Embodiment 4
The aircondition of embodiments of the present invention 4 is described.Figure 19 is the in-built front view of the indoor set 1 of the aircondition schematically representing present embodiment.Figure 20 is the in-built side view schematically representing indoor set 1.In addition, for having the function identical with embodiment 1 and the inscape of effect, also the description thereof will be omitted to mark identical Reference numeral.
In the indoor set 1 that Figure 19 and Figure 20 represents, make open pore 30a, 30b that prolongation pipe arrangement 10a, 10b are through, be arranged at top or the end face (being end face in this example) of framework 111.Extend pipe arrangement 10a, 10b respectively via open pore 30a, 30b, externally take out from the upper space 115b in framework 111.Wherein, the top of framework 111 refers in framework 111 than separating part 20 position by the top.Open pore 30a, 30b are preferably arranged on position (such as, than indoor heat converter 7 and connector portions 15a, 15b position by the top) high highly as far as possible.
Open pore 30a, 30b such as have the structure same with embodiment 3.That is, between the periphery being wound in thermal insulation barriers 18a, 18b of extending pipe arrangement 10a, 10b and the inner circumferential of open pore 30a, 30b, gap-fill part 19 is filled with.By filling gap-fill part 19, thus between the inner circumferential of the periphery of thermal insulation barriers 18a, 18b and open pore 30a, 30b, the tube axial direction extending pipe arrangement 10a, 10b is closed airtightly.Therefore, it is possible to suppress at the cold-producing medium of upper space 115b internal leakage, via the gap between the periphery of thermal insulation barriers 18a, 18b and the inner circumferential of open pore 30a, 30b, to the External leakage of framework 111.
But, when the precision of the installation exercise of indoor set 1 is lower, likely produces deviation at gap-fill part 19 place, thus between the periphery of thermal insulation barriers 18a, 18b and the inner circumferential of open pore 30a, 30b, form small gap.When there occurs refrigrant leakage in upper space 115b, leak into the cold-producing medium of framework 111 outside from upper space 115b via the gap of gap-fill part 19, flow out to indoor not via fan drum 108.Therefore when the precision of the installation exercise of indoor set 1 is lower, if there is refrigrant leakage in upper space 115b, then a part for the cold-producing medium of the leakage of fully not spreading in fan drum 108, likely directly leaks to indoor.
But, in the present embodiment, use under atmospheric pressure large than the density of air cold-producing medium, and open pore 30a, 30b are arranged at top or the end face of framework 111.Even if therefore when generation gap, gap-fill part 19 place, leakage of refrigerant is also difficult to flow out to framework 111 outside via the gap of gap-fill part 19.Suppose, even if the leakage of refrigerant in upper space 115b, outside is flowed out to framework 111 via the gap of gap-fill part 19, because open pore 30a, 30b are arranged at the higher position of height apart from ground, therefore leak into indoor cold-producing medium to spread in decline process, thus make refrigerant concentration even.Therefore according to the present embodiment, can prevent the refrigerant concentration local because of indoor from raising more reliably, and cause in formation combustible concentration region, indoor.
As described above, the aircondition of above-mentioned embodiment has: kind of refrigeration cycle 40, and it makes refrigerant circulation via refrigerant piping; Off-premises station 2, it at least accommodates compressor 3 and the outdoor heat converter 5 of kind of refrigeration cycle 40; Indoor set 1, it at least accommodates the indoor heat converter 7 of kind of refrigeration cycle 40, and be connected with off-premises station 2 via prolongation pipe arrangement 10a, 10b of the part as refrigerant piping, cold-producing medium has under atmospheric pressure large than the density of air density, and indoor set 1 possesses: framework 111; Upper space 115b, it is configured with indoor heat converter 7 in the inside of framework 111; Lower space 115a, it is in the inside of framework 111, is arranged on than upper space 115b position on the lower; Separating part 20, upper space 115b and lower space 115a separates by it; Indoor Air Blast fan 7f, it is configured at lower space 115a; Fan drum 108, it is configured at lower space 115a, Air Blast fan 7f in covering chamber and be formed blowout opening portion 108a and suction opening portion 108b, wind path opening portion 20a is formed at separating part 20, this wind path opening portion 20a becomes the wind path between upper space 115b and lower space 115a, one side (being blowout opening portion 108a in this example) of blowout opening portion 108a or suction opening portion 108b, is connected to wind path opening portion 20a.
In addition, in the aircondition of above-mentioned embodiment, indoor heat converter 7 and extending between pipe arrangement 10a, 10b, can connect, and connector portions 15a, 15b is configured at upper space 115b via connector portions 15a, 15b.
In addition, in the aircondition of above-mentioned embodiment, indoor heat converter 7 and extend between pipe arrangement 10a, 10b, can connect via connector portions 15a, 15b, and connector portions 15a, 15b are configured at than indoor Air Blast fan 7f (such as, impeller 107 (wing)) position by the top.
In addition, in the aircondition of above-mentioned embodiment, can be formed with front surface opening portion at the front surface of framework 111, framework 111 at least possesses: the first front surface panel 114a, and it can be installed on the bottom of front surface opening portion removably; Second front surface panel 114b, it can be installed on than above-mentioned bottom part by the top in front surface opening portion removably, and connector portions 15a, 15b are arranged at the position on the lower, upper end than the first front surface panel 114a.
In addition, in the aircondition of above-mentioned embodiment, indoor heat converter 7 can have the pipe junction surface each other (such as, brazed portion W) of a part for the stream becoming cold-producing medium.
In addition, in the aircondition of above-mentioned embodiment, can be provided with in framework 111: become the under shed portion (in this example for suction inlet 112) of a side of suction inlet or blow-off outlet and be configured at than position by the top, under shed portion and become the upper shed portion (being blow-off outlet 113 in this example) of the opposing party of suction inlet or blow-off outlet, at under shed, portion is provided with diffusion mechanism, flows out to outside gas diffusion for making from the inside of framework 111.
In addition, in the aircondition of above-mentioned embodiment, diffusion mechanism can comprise grid (being suction grid 120 in this example), and this grid has the shape radially expanded towards the outside from the inside of framework 111.
In addition, in the aircondition of above-mentioned embodiment, diffusion mechanism can comprise the filter 121 be made up of non-woven fabrics or net.
In addition, in the aircondition of above-mentioned embodiment, indoor Air Blast fan 7f can be aerofoil fan or diagonal flow fan.
In addition, in the aircondition of above-mentioned embodiment, indoor Air Blast fan 7f rotatably can stop in the stopped process of indoor set 1.
In addition, in the aircondition of above-mentioned embodiment, can at least one in separating part 20 (comprising recess 130), bellying 132 and framework 111, be formed make prolongation pipe arrangement 10a, 10b through open pore 30,30a, 30b, 31, extend the periphery of pipe arrangement 10a, 10b and open pore 30,30a, 30b, 31 inner circumferential between, be filled with use the expanded material of separated foam to be formed gap-fill part 19,19a, 19b.
In addition, in the aircondition of above-mentioned embodiment, can framework 111 be formed make prolongation pipe arrangement 10a, 10b through open pore 30,30a, 30b, 31, open pore 30,30a, 30b, 31 are arranged at top or the end face of framework 111.
In addition, in the aircondition of above-mentioned embodiment, upper space 115b can be positioned at the position than lower space 115a downstream in the air stream produced by indoor Air Blast fan 7f.
In addition, in the aircondition of above-mentioned embodiment, indoor set 1 can be the indoor set putting type in the end being arranged at flooring.
In addition, in the aircondition of above-mentioned embodiment, cold-producing medium can be combustible refrigerant.
Other embodiments
The present invention is not limited to above-mentioned embodiment, but can carry out various distortion.
Such as, in the above-described embodiment, list the example of sirocco fan as indoor Air Blast fan 7f, but also can use turbofan, cross flow fan, aerofoil fan (such as, propeller type fan) or diagonal flow fan, as indoor Air Blast fan 7f.Such as, when using aerofoil fan as indoor Air Blast fan 7f, use cylindric fan drum.The axial end portion of fan drum, also can be formed as bell mouth shape.In addition, such as, when using aerofoil fan or diagonal flow fan as indoor Air Blast fan 7f, be preferably in the process stopped at indoor set 1, the structure stopped indoor Air Blast fan 7f rotatable (state of non-locking).When using aerofoil fan or diagonal flow fan as indoor Air Blast fan 7f, the density contrast of leakage of refrigerant and the air dripped from upper space 115b lower portion space 115a can be utilized, the indoor Air Blast fan 7f of stopping is rotated to the direction contrary with direction of rotation during running.By this indoor Air Blast fan 7f rotation round about, the flowing of mist of leakage of refrigerant and air can produced towards the direction of indoor from suction inlet 112 thus.Spread further in atmosphere, therefore, it is possible to suppress more reliably in formation combustible concentration region, indoor therefore, it is possible to make to flow out to indoor leakage of refrigerant.
In addition, in the above-described embodiment, list and form suction inlet 112 in the bottom of framework 111, forming the example of structure of blow-off outlet 113 than its position by the top, but the upper and lower relation of suction inlet 112 and blow-off outlet 113 can be contrary.That is, also can be configured to: form blow-off outlet 113 (example under shed portion) in the bottom of framework 111, form suction inlet 112 (example in upper shed portion) than its position by the top.In this case, upper space 115b, in the air stream produced by indoor Air Blast fan 7f, is positioned at than the position of lower space 115a by upstream side.
In addition, in the above-described embodiment, the recess (recess of upper opening) in the delay portion of the cold-producing medium becoming leakage is preferably there is not in wind path space 81.In addition, when there is such recess, the volume of preferred recess is less.
In addition, in the above-described embodiment, list the example of combustible refrigerant as cold-producing medium, as long as but under atmospheric pressure large than the density of air cold-producing medium, then regardless of the flammability of cold-producing medium, can both leakage of refrigerant be made equally with above-mentioned embodiment to spread and to indoor outflow.Therefore, even if when using the cold-producing medium beyond combustible refrigerant, indoor refrigerant concentration local also can be suppressed to raise.In addition, due to the sensor of leakage detecting cold-producing medium can not be needed, therefore, it is possible to suppress indoor set 1 and comprise its manufacturing cost of aircondition.
In addition, the respective embodiments described above, variation, can combine to implement mutually.

Claims (17)

1. an aircondition, is characterized in that, has:
Kind of refrigeration cycle, it makes cold-producing medium circulate via refrigerant piping;
Off-premises station, it at least accommodates compressor and the outdoor heat converter of described kind of refrigeration cycle; And
Indoor set, it at least accommodates the indoor heat converter of described kind of refrigeration cycle, and is connected with described off-premises station via the prolongation pipe arrangement of the part as described refrigerant piping,
Described cold-producing medium has under atmospheric pressure large than the density of air density,
Described indoor set possesses:
Framework;
Upper space, it is configured with described indoor heat converter in the inside of described framework;
Lower space, it is in the inside of described framework, is arranged at than described upper space position on the lower;
Separating part, it is separated described upper space and described lower space;
Fan, it is configured at described lower space; And
Fan drum, it is configured at described lower space, for covering described fan and being formed with blowout opening portion and suction opening portion,
Be formed with wind path opening portion at described separating part, this wind path opening portion becomes the wind path between described upper space and described lower space,
One side in described blowout opening portion or described suction opening portion, is connected to described wind path opening portion.
2. aircondition according to claim 1, is characterized in that,
Be connected via connector portions between described indoor heat converter with described prolongation pipe arrangement,
Described connector portions is configured at described upper space.
3. aircondition according to claim 1, is characterized in that,
Be connected via connector portions between described indoor heat converter with described prolongation pipe arrangement,
Described connector portions is configured at than described fan position by the top.
4. aircondition according to claim 2, is characterized in that,
Front surface opening portion is formed at the front surface of described framework,
Described framework at least possesses: the first front surface panel, and it can be installed on the bottom of described front surface opening portion removably; Second front surface panel, it can be installed on than described bottom part by the top in described front surface opening portion removably,
Described connector portions is arranged at the position on the lower, upper end than described first front surface panel.
5. aircondition according to claim 1, is characterized in that,
Described indoor heat converter has pipe junction surface each other, and this pipe junction surface each other becomes a part for the stream of described cold-producing medium.
6. aircondition according to claim 1, is characterized in that,
Be provided with in described framework: under shed portion, it becomes a side of suction inlet or blow-off outlet; Upper shed portion, it is configured at than position by the top, described under shed portion, and becomes the opposing party of described suction inlet or described blow-off outlet,
Described under shed portion is provided with diffusion mechanism, and this diffusion mechanism makes to spread from the interior effluent air of described framework.
7. aircondition according to claim 6, is characterized in that,
Described diffusion mechanism comprises grid, and this grid has the shape radially expanded towards the outside from the inside of described framework.
8. aircondition according to claim 6, is characterized in that,
Described diffusion mechanism comprises filter, and this filter is made up of non-woven fabrics or net.
9. aircondition according to claim 1, is characterized in that,
Described fan is aerofoil fan or diagonal flow fan.
10. aircondition according to claim 9, is characterized in that,
In the process that described indoor set stops, described fan rotatably stops.
11. airconditions according to any one of claim 1 ~ 10, is characterized in that,
At least one party of described separating part and described framework, be formed with the open pore making described prolongation pipe arrangement through,
Between the periphery and the inner circumferential of described open pore of described prolongation pipe arrangement, be filled with gap-fill part.
12. airconditions according to claim 11, is characterized in that,
Described gap-fill part uses the expanded material of separated foam to be formed.
13. airconditions according to any one of claim 1 ~ 10, is characterized in that,
The open pore making described prolongation pipe arrangement through is formed in described framework,
Described open pore is arranged at top or the end face of described framework.
14. airconditions according to any one of claim 1 ~ 10, is characterized in that,
Described upper space be arranged in produced by described fan air stream, position than described lower space downstream.
15. airconditions according to any one of claim 1 ~ 10, is characterized in that,
Described upper space is arranged in the air stream produced by described fan, the position leaning on upstream side than described lower space.
16. airconditions according to any one of claim 1 ~ 10, is characterized in that,
Described indoor set puts type indoor set in the end being arranged at flooring.
17. airconditions according to any one of claim 1 ~ 10, is characterized in that,
Described cold-producing medium is combustible refrigerant.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106052038A (en) * 2016-07-04 2016-10-26 珠海格力电器股份有限公司 Air conditioning system as well as air conditioning control method and device
CN109073306A (en) * 2016-04-27 2018-12-21 三菱电机株式会社 Refrigerating circulatory device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6207653B2 (en) * 2014-07-08 2017-10-04 三菱電機株式会社 Air conditioner
US11067303B2 (en) * 2017-02-01 2021-07-20 Mitsubishi Electric Corporation Air-conditioning apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02195126A (en) * 1989-01-23 1990-08-01 Matsushita Refrig Co Ltd Air conditioner
JPH06101866A (en) * 1992-09-21 1994-04-12 Sanyo Electric Co Ltd Air-conditioner
JPH10332163A (en) * 1997-06-03 1998-12-15 Matsushita Seiko Co Ltd Piping device for heat-exchanger for air-conditioner
JP2000130794A (en) * 1998-10-28 2000-05-12 Daikin Ind Ltd Cover for part for passing piping of air conditioner
JP2005049004A (en) * 2003-07-28 2005-02-24 Fujitsu General Ltd Air conditioner
CN1727763A (en) * 2004-07-30 2006-02-01 上海日立电器有限公司 Bi-directional indoor machine of air conditioner
CN103392102A (en) * 2011-09-14 2013-11-13 松下电器产业株式会社 Air conditioner
CN204704933U (en) * 2014-07-08 2015-10-14 三菱电机株式会社 Aircondition

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2990570B2 (en) * 1994-08-18 1999-12-13 松下電器産業株式会社 Integrated air conditioner
JP2957548B1 (en) * 1998-04-20 1999-10-04 山形日本電気株式会社 Cylinder cabinet
JP3744330B2 (en) * 2000-09-26 2006-02-08 ダイキン工業株式会社 Air conditioner indoor unit
JP3523584B2 (en) * 2000-10-12 2004-04-26 株式会社 日立インダストリイズ Heat pump system
JP5144632B2 (en) * 2009-12-18 2013-02-13 三菱電機株式会社 Shield plate and air conditioning system
CN203310012U (en) * 2013-05-08 2013-11-27 广东美的制冷设备有限公司 Heat exchanger and air-conditioner outdoor unit
JP5865529B1 (en) * 2014-07-15 2016-02-17 三菱電機株式会社 Air conditioner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02195126A (en) * 1989-01-23 1990-08-01 Matsushita Refrig Co Ltd Air conditioner
JPH06101866A (en) * 1992-09-21 1994-04-12 Sanyo Electric Co Ltd Air-conditioner
JPH10332163A (en) * 1997-06-03 1998-12-15 Matsushita Seiko Co Ltd Piping device for heat-exchanger for air-conditioner
JP2000130794A (en) * 1998-10-28 2000-05-12 Daikin Ind Ltd Cover for part for passing piping of air conditioner
JP2005049004A (en) * 2003-07-28 2005-02-24 Fujitsu General Ltd Air conditioner
CN1727763A (en) * 2004-07-30 2006-02-01 上海日立电器有限公司 Bi-directional indoor machine of air conditioner
CN103392102A (en) * 2011-09-14 2013-11-13 松下电器产业株式会社 Air conditioner
CN204704933U (en) * 2014-07-08 2015-10-14 三菱电机株式会社 Aircondition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109073306A (en) * 2016-04-27 2018-12-21 三菱电机株式会社 Refrigerating circulatory device
CN106052038A (en) * 2016-07-04 2016-10-26 珠海格力电器股份有限公司 Air conditioning system as well as air conditioning control method and device

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JP5918399B2 (en) 2016-05-18
CN109185982B (en) 2020-08-18
CN109185982A (en) 2019-01-11

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